Very unusual black and white diamond necklace: © I. M. Chait Gallery

consisting of thirty-nine approx. 115 Cts. graduated round brilliant cut black diamonds, interspersed with approx. 1.70 Cts. of white diamonds, all in 14K white gold mounting; with safety clasp; L: 17 1/4"; Lot 405. Estimate $18,000-20,000

with AIG Appraisal Certificate #019912026050RTF 

I. M. Chait Gallery. Asian & international Fine Arts Auction  -  Jul 08 2012 11:00 AM. http://www.chait.com